Roller bearing



April 16, 1946- P. E. PROVINCE 2,398,459

Filed Feb. 7,. 1944 PHUL E PF1 DVIN l: E

INVENTU H BY efmm ,Y Parenteel Apr. 1s, 1946 ori-ics v ROLLER BEARING Paul E. Province, Kent, Ohio Application February 1, 1944, sei-m 10.521.355 3 claims. icl. sos-214) This invention relates to improvements in roller bearings, and while intended forgeneral use, it is particularly designed for use in connection with heavy machinery.

Objects of the invention are to provide a roller bearing employing two sets of tapered rollers mounted in oppositely tapered raceways, each formed of an inner bearing cone, .and an outer bearing cup and to provide an improved ball bearing mounted for the axial end of each roller to reduce friction resulting fromv thrust loads and to provide a new arrangement and assembly of parts which can be economically manufactured and assembled to form a highly eiilcient bearing.

Theabove objects are accomplished and other ends attained by the combination and arrangement of elements hereinafter described with reference to the accompanying drawing in which there is shownan illustrative embodiment of the invention, it being understood that the invention is not coniined to the exact form illustrated and that changes and modications may be made which come within the scope of the claims hereinafter set forth.

In the drawing: y,

Figure 1 is a central longitudinal sectional view of a bearing constructed in accordance with this invention.

Figure 2 is a fragmentary central longitudinal sectional view showing one end portion of one of the rollers employed in reducing the invention to practice.

Figure 3 is an end elevational view of same.

Figure 4 is a side elevational view partly in longitudinal section yshowing one of the rollers tted with one form of ball -retainers which may be employed in carrying out the invention.

Figure 5 is an end elevational view of same.

Figure 6 is a cross-sectional view taken as indicated by the line 6-6 of Figure 1.

Figure 7 is plan view showing an axial face of the bearing ring.. i

In the particular adaptation of the'invention shown, the numerals I Il and II denote inner cones or bearing sleeves which are mounted on the shaft I2 and secured thereto by the key 9 or any suitable fastening means, with the bases oi' the cones presented toward each other to form inner raceway surfaces. A spacing band Il is positioned on the shaft I2 between the cones III 'and II. The spacing b'and I 3 is smaller in outside diameter than the base of the cones I0 and I I. In some types of bearings the cones I0 and II and the band I3 may be formed of one piece of material.

` wise provided with a concentrically arranged The numeral I5 denotes tapered rollers a cir- The bottom wall I8 of each .seat I1 is disposed at a right angle to the axis of the adjacent roller I5. v

The bottom wall Il of each seat I1 is provided with an annular groove 20 of rounded crosssection. The axial end of each roller I5 is likeannular groove 2| which is of the same size and cross-section as the groove 20. The rollers I5 are positioned on the cones II) and II with the grooves 2| in each roller coinciding with a groove 20 in the ring I5 and balls 23 are interposed and rollin each oi' the raceways thus formed.

` A cup or bearing ring 25 having an inner ciri cumferential face forming an outer conical raceway surface 26 is positioned around each set oi rollers I5 and abearing retainer or hub 21 surrounds the assembly above described. In the drawing there is shown a retainer 21 having a cylindrical cavity 2! formed to snugly receive the -outer bearing rings 25. The retainer 21 is provided -with an integrally formed axial wall 34 having a centrally positioned bore 30 for receiving the shaft I2. 4 A plate 3| is secured to the other.

cone I0 and the cone II terminates in spaced relation to the cover plate 3i thus permitting free rotation of the hub 21. Y

The outwardly presented axial ends of the rollers I5 in each set terminate in spaced relation l to the wall Il or plate 3l. I'he plate 3| is proemployed to hold the rollers I5 in spaced relation in the drawing. there is shown a conical cup 21 2 r rassenso of the rollers Il. 5'

Inl'igures4and5tl'i'ereisshownaballre- 'miner for securing the bans u in the grooves 2| formed on a radius slightly larger than the radius 15 0i the balls 23. Y t

Having thus illustrated my invention and described the same in detail, what I claim and desire to secure by Letters Patent is:

1. A miler bearing including an inner sleeve 20 provided with a pair of oppositcly tapered inner conical raceway surfaces arranged with the bases of. said conical surfaces presented toward each other, outer sleeves providing a pair of oppositeiy tapered outer raceway surfaces. each set of 25 sleeves forming roller raceways, a set of tapered roller bearings interposed .in each set of raceways mounted in coaxial relation between said raceof rollers, and a ball bearing operatively mounted between the inwardly presented end 0f each roller and said ring, said ball bearing comprising a plate pivotally connected to the large end of each of said rollers, said plate being provided with aper- 35 The disk 3l" is se- 10 tures for receiving said balls to project therethrough.

2. .A roller bearing including an inner sleeve provided with a pair of oppositely tapered inner conical raceway surfaces arranged with the bases of said conical surfaces presented toward each other, outer sleeves providing a pair of oppositely tapered outer raceway surfaces, each set oi' sleeves forming roller raceways, a set of tapered roller bearings interposed in each set of raceways with the large ends thereof inwardly. a rlig mounted in coaxial relation between said raceways to receive ,the inner axial ends of both sets of rollers, and a ball bearing operatively mounted between the inwardly presented end of each roller and said ring, said ball bearing comprising a plate pivotally connected to the large end of each of said rollers, said plate being provided with apertures for receiving said balls to project therethrough, the apertures of said plate being smaller than the diameter o f= said balls for retaining the balls in cooperation with the roller thereof.

3. In a roller bearing tapered inner and outer concentrically arranged bearing rings forming a raceway, tapered rollers interposed in said raceway, a ring positioned to receive the axial thrust from said rollers, said ring revolvabie with the with the large ends thereof inwardly, a ring. i

-'s'ai'd ring, each of said ball bearings including a. ways to receive the inner axial ends of both sets 30' rollers and a ball bearing between each roller and ball retainingmember pivotally connected to its roller; said rollers and said ring having concentric annular groovesto provide bail raceways forsaid 

